Erosion Due to Cavitation
 

Hi to everbody out there,
Hi folks i would lik to model Erosion which s caused due to cavitation in fluent 14 or in 14.5, can anybody plz help me out how to model tis case. i searched for some tutorials files online bt didnt get any. am in need of it so badly.:confused::confused:

Hi,
send me a pm with your email if you are interested and I'll send you a simple tutorial about dpm erosion (water + sand).
I cannot upload here as it exceeds the maximum file size.

Daniele

hello Daniele,
thanks for ur reply. Acutally my problem is i wanna know how to model erosion which is caused because of fluid flow. u r suggesting me to model a erosion which s caused because of sand particle.
let me mak it simple for u. coz of fluid flow in a cylinder there may erosion tak place. i want to model tat erosion caused by the liquid on the solid surface ok.
Hope so u got it. my mail id is nijaanthan@gmail.com.

Sorry,
I didn't read well your post.

Daniele

So is there any chance of modelling that problem in fluent????:confused:

off course: start a cavitation simulation then post process the criterion for the erosion due to gas bubbles collapse frequency

Thank u Zaktatir.
I would like to know how to post process for erosion?
Am interested in knowing only abt the erosion which is happenning in my domain.
So how do i do tat?
Can i get any reference if possible???

look for papers about that and ask your support for examples. I saw this yesterday hot to make it. You need the criterion of erosion and carry out the rayleigh-plesset modeling of cavitation nothing more (okay cavitation may be very numerical tricky and expensive time steps)

you need implement the criterion in order to calculate the erosion rate

hi all, I want to calculate the particle trajectory in a valve. I have got the converger result of gas flow field inside. But when I added DPM into it, some error happened. Error: Floating point error: invalid number.
Are there some special issue to be noticed when using DPM? The point Properties： diameter 0.0001m, Temp 500K, velocity 1m/s, total flow rate 0.1kg/s. The max NO. of steps is 1000. Courant number is 0.1. So what's the problem may be?

Thanks a lot